1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your GCSHXX GCS908 3-Axis LCD Digital Readout (DRO) system, including the high-precision linear scales. The GCS908-3 is a versatile digital readout designed for various machine tools, offering multi-language support and advanced machining functions.
2. Package Contents
Depending on your order, the package will contain one of the following configurations:
2.1. ONLY LCD DRO (without linear scale)
- 1 x GCS908-3 LCD display unit
- 1 x User Manual
- 1 x Mounting Bracket
- 1 x Power Cable
- 1 x Screw Bag
2.2. GCS908-3 LCD DRO KIT
- 1 x GCS908-3 LCD display unit
- 1 x User Manual
- 1 x Mounting Bracket
- 1 x Power Cable
- 1 x Screw Bag
- 3 x Linear Scales (5um/0.005mm resolution)
- 3 x Scale Covers
- 3 x Linear Scale Mounting Brackets & Screw Bags
2.3. 0.001mm LCD DRO KIT
- 1 x GCS908-3 LCD display unit
- 1 x User Manual
- 1 x Mounting Bracket
- 1 x Power Cable
- 1 x Screw Bag
- 3 x Linear Scales (0.001mm resolution)
- 3 x Scale Covers
- 3 x Linear Scale Mounting Brackets & Screw Bags
3. Specifications
3.1. GCS908 LCD DRO Unit
| Feature | Specification |
|---|---|
| Model Number | GCS908 |
| Procut Name | 3 Axis LCD DRO SET |
| Input Voltage | AC80-250V 50/60HZ |
| Power Consumption | 25VA |
| Output | 5VDC |
| Signal | TTL (EIA-442 available upon request) |
| Resolution | 5um (Can be customized to 1um) |
| Languages Supported | 19 (English, Russian, German, French, Spanish, Portuguese, Italian, Polish, Ukrainian, Croatian, Slovak, Dutch, Czech, Turkish, Japanese, Korean, Vietnamese, Simplified Chinese, Traditional Chinese) |
| Battery Included | No |
| Certification | CE |
3.2. Linear Scales (Model: GCS898)
| Feature | Specification |
|---|---|
| Travel Length (Available Measurement) | 50mm - 1000mm (customizable) |
| Total Length | Travel Length + 138mm |
| Cross Section Size | 21mm x 33mm |
| Resolution | 5um/0.005mm (or 0.001mm for specific kits) |
| Cable Length | 3 meters |
| Material | Industrial grade aluminum alloy profile (anodized treatment) |
| Cable Material | 304 stainless steel conduit (corrosion and oil resistance) |
4. Features
4.1. GCS908 DRO Advantages
- Full functions, suitable for milling, turning, drilling, boring, wire cutting, etc.
- Wide voltage range (AC80-250V) for global use.
- Compatible with various linear scales (HXX, Sino, Rational, Easson) by adjusting signal settings.
- Large LCD display for easy readability.
- Complete set of accessories included.
4.2. GCS908 DRO Functional Description
The GCS908-3 is a multi-functional digital readout adaptable to various machining needs through system parameter modifications. It includes a range of graphic machining functions:
- Arc Calculation Function
- Circumferential Equalisation of Holes
- Drilling Along Diagonal Line
- Angular Surface Machining
- Circular Arc Calculation Function
5. Setup & Installation
5.1. Choosing Linear Scale Length (for Complete Kits)
For complete kits including linear scales, it is crucial to specify the desired travel length. The travel length can be customized from 50mm to 1000mm. The total length of the scale will be the travel length plus 138mm.
When ordering, please clearly communicate your required travel length or actual overall length. If not specified, the default will be travel length. Failure to specify may result in non-delivery.
5.2. Physical Installation
Mount the GCS908-3 LCD display unit using the provided mounting bracket and screws. Ensure it is securely fastened in a location that allows for clear visibility and easy access to controls during operation.
Install the linear scales (Model GCS898) on your machine tool (lathe, milling machine, etc.) using the provided mounting brackets and screw bags. Ensure the scales are aligned correctly and the readhead moves smoothly along the scale. The protective housing should be used to shield the scale from dust, oil, water, and iron filings.
5.3. Electrical Connection
Connect the linear scales to the GCS908-3 DRO unit using the provided DB9 plugs. Ensure the connections are secure. Connect the DRO unit to a power source using the appropriate power cable for your region (AU, EU, UK, US plug options are available).
6. Operating Instructions
6.1. Power On and Initial Setup
Turn on the DRO unit. The system will boot up. You may need to enter a system password (default is usually 123456) to access system settings.
Video 1: Demonstration of language selection and linear scale movement on the GCS908 DRO.
6.2. Language Selection
The GCS908-3 supports 19 languages. To change the language:
- Access the system settings (usually by pressing a 'System' or 'Menu' button and entering the password).
- Navigate to the 'Language' option.
- Use the arrow keys or F-buttons (e.g., F4 as indicated in some displays) to cycle through the available languages.
- Select your desired language (e.g., English, Russian, German, French, Spanish, Portuguese, Italian, Polish, Ukrainian, Croatian, Slovak, Dutch, Czech, Turkish, Japanese, Korean, Vietnamese, Simplified Chinese, Traditional Chinese).
- Confirm your selection and exit the settings.
6.3. Basic Functions
The GCS908 DRO offers a wide array of basic functions for precise measurement and control:
- Factory Reset: Resets all settings to their default values.
- Setup Location Display Method: Configures how coordinates are displayed.
- Signal Interface Type: Adjusts for TTL or EIA-442 signals.
- Setup Resolution: Sets the measurement precision (e.g., 5um, 1um).
- Setup Positive Direction for Counter: Defines the positive movement direction for each axis.
- Setup Compensation Type: Configures linear or non-linear error compensation.
- Setup Encoder Linear: For encoder linearity settings.
- Setup Screw Clearance: Adjusts for backlash compensation.
- Setup Coordinate Joint: For coordinate system alignment.
- Setup INCH Unit Dot: Configures decimal point display for inch measurements.
- Setup Anti-Filtering: Adjusts signal filtering to reduce noise.
- Setup Angle Display Mode: Configures how angles are displayed.
- Setup Screen Saver Time: Sets the duration before the screen saver activates.
- Setup Language: As described in Section 6.2.
- Setup Anti-shake: Reduces display fluctuations.
- Setup RS485 Baudrate: For serial communication settings.
- Zeroing: Resets the current axis reading to zero.
- Preset Data to Designated Axis: Enters a specific value for an axis.
- Toggle Display Unit: Switches between inch and millimeter units.
- Absolute/Incremental/200 groups SDM: Manages absolute, incremental, and stored datum measurements.
- 1/2 Function: Calculates the center point.
- Clear All SDM Datum: Clears all stored datum points.
- Screen Saver Function: Activates the screen saver.
- Power Interruption Memory: Retains settings and last position after power loss.
- Linear Compensation: Corrects for linear errors in the scale.
- Non Linear Error Compensation: Corrects for non-linear errors.
- R/D Function: Radius/Diameter display toggle.
- Brightness Adjustment: Adjusts screen brightness.
- 200 Groups SDM Coordinate: Stores up to 200 datum coordinates.
- Zeroing at the Current Point: Sets the current position as zero.
- Preset Datum of SDM Coordinate: Presets values for stored datum.
- Calculator: Built-in calculator function.
6.4. Special Functions
The GCS908 DRO includes advanced functions for complex machining operations:
- Circumference Holes Processing: For drilling holes on a circular pattern.
- Linear Holes Processing: For drilling holes along a straight line.
- Smooth ARC Processing: For machining smooth arcs.
- Simple ARC Processing: For basic arc machining.
- Slope Processing: For machining angled surfaces.
- Network Holes Processing: For complex hole patterns.
- Rectangle Inner Processing: For machining internal rectangular features.
- EDM Processing: Functions specific to Electrical Discharge Machining.
7. Maintenance
7.1. General Care
- Keep the DRO display unit clean and free from dust. Use a soft, dry cloth for cleaning.
- Ensure the linear scales are protected by their covers to prevent ingress of dust, oil, water, and iron filings.
- Regularly inspect cables for any signs of wear or damage.
- The linear scale's 304 stainless steel conduit cable is designed for corrosion and oil resistance; however, avoid excessive exposure to harsh chemicals.
7.2. Cleaning
For the LCD display, use a soft, lint-free cloth. For stubborn marks, a slightly dampened cloth with water or a mild screen cleaner can be used, ensuring no liquid enters the unit.
For linear scales, gently wipe the exposed surfaces with a clean, soft cloth. If necessary, use a mild, non-abrasive cleaning solution. Ensure the raster glass is kept clean for accurate readings.
8. Troubleshooting
8.1. Common Issues and Solutions
| Problem | Possible Cause | Solution |
|---|---|---|
| DRO not powering on | No power, faulty cable, power switch off | Check power connection, ensure power switch is on, try a different power outlet. |
| Inaccurate readings from linear scale | Scale misalignment, dirty raster glass, damaged scale/readhead | Check scale alignment, clean raster glass, inspect for physical damage. |
| Display flickering or unstable readings | Electrical interference, loose cable connection, anti-shake setting | Ensure proper grounding, check cable connections, adjust "Anti-shake" setting in system parameters. |
| Cannot change language | Incorrect system password, wrong menu navigation | Ensure correct password is used. Refer to Section 6.2 for language selection steps. |
9. User Tips
- Scale Length Confirmation: Always double-check and confirm the required travel length of your linear scales with the seller, especially for custom orders, to avoid delays or incorrect parts.
- Signal Compatibility: If using linear scales from other brands, ensure the signal type (TTL or EIA-442) is compatible or can be adjusted in the DRO settings. Contact support if unsure.
- Regular Calibration: For critical applications, periodically verify the accuracy of your DRO system using known standards.
10. Warranty & Support
This product comes with a 2-year warranty. For any technical assistance, troubleshooting, or warranty claims, please contact the seller or manufacturer directly. Ensure you retain your purchase records for warranty validation.
